Home / 8,108.33-12,161.60-2,185.81

Finding the Fourth Proportional to 8,108.33, 12,161.60 and 2,185.81

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Solution

The fourth proportional to 8,108.33, 12,161.60 and 2,185.81 is: 3,278.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,108.33 : 12,161.60 = 2,185.81 : x
  2. Step 2: Convert to fraction form
    8,108.33/12,161.60 = 2,185.81/x
  3. Step 3: Cross multiply
    8,108.33x = 12,161.60 × 2,185.81
  4. Step 4: Simplify right side
    8,108.33x = 26,582,942.59
  5. Step 5: Solve for x
    x = 26,582,942.59/8,108.33
  6. Step 6: Final answer
    x = 3,278.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.